"frontend: Fatal IO error 104 (Connection reset by peer) on X server :0." on upgrade

[José Ciríaco]

after upgrade this error occurred

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: samba-common 2:4.3.9+dfsg-0ubuntu0.16.04.2
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Sat Aug 6 19:24:58 2016
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2015-08-08 (364 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
PackageArchitecture: all
RelatedPackageVersions:
 nautilus 1:3.18.4.is.3.14.3-0ubuntu4
 gvfs 1.28.2-1ubuntu1~16.04.1
SambaClientRegression: Yes
SourcePackage: samba
Title: package samba-common 2:4.3.9+dfsg-0ubuntu0.16.04.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2016-08-06 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Robie Basak (racb)]

From log:

Setting up samba-common (2:4.3.9+dfsg-0ubuntu0.16.04.2) ...
frontend: Fatal IO error 104 (Connection reset by peer) on X server :0.

[Robie Basak (racb)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Since it seems likely to me that this is a local configuration problem, rather than a bug in Ubuntu, I'm marking this bug as Incomplete.

If indeed this is a local configuration problem, you can find pointers to get help for this sort of problem here: http://www.ubuntu.com/support/community

Or if you believe that this is really a bug, then you may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem, explain why you believe this is a bug in Ubuntu rather than a problem specific to your system, and then change the bug status back to New.

[Launchpad Janitor (janitor)]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no activity for 60 days.]